Results 81 to 90 of about 404,456 (371)

A third-order KdV solution for internal solitary waves and its application in the numerical wave tank

Journal of Ocean Engineering and Science, 2016
A third-order KdV solution to the internal solitary wave is derived by a new method based on the weakly nonlinear assumptions in a rigid-lid two-layer system. The solution corrects an error by Mirie and Su (1984).
Qicheng Meng, Chongwei Zhang
doaj   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Numerical simulation study of wave dissipation performance of step‐type breakwaters

Engineering Reports
To improve the force endurance capacity of plate breakwaters, a step‐type plate breakwater was proposed. The performance of the step‐type breakwater was investigated by numerical simulation method. First, a two‐dimensional numerical regular wave tank was
Feng Jin, Zhouyi Huang, Wenhao Deng, Minyi Chen, You Ma, Peng Chai   +5 more
doaj   +1 more source

Ultra‐Low Intensity Continuous Wave Laser Ablation Propulsion With Graphene‐Engineered Wood

Advanced Science, EarlyView.
Graphene delignified wood converts continuous wave laser energy into thrust. Laser propulsion experiments in vacuum reveal the lowest laser ablation threshold intensities and the greatest density‐normalized specific impulse in literature. The results highlight graphene delignified wood as a potential efficient, sustainable, strong, and lightweight ...
Afnan S. M. Elmubasher, Rami Elkaffas, Mohamed Hamid Salim, Basel Altawil, Chanaka Sandaruwan, Shanavas Shajahan, Ahsan Baidar Bakht, Irfan Hussain, Blaise L. Tardy, Sean S. M. Swei, Yarjan Abdul Samad   +10 more
wiley   +1 more source

A Comparison of Frequency Downshift Models of Wave Trains on Deep Water

, 2018
Frequency downshift (FD) in wave trains on deep water occurs when a measure of the frequency, typically the spectral peak or the spectral mean, decreases as the waves travel down a tank or across the ocean.
Butterfield, Isabelle, Carter, John D., Henderson, Diane   +2 more
core   +1 more source

Numerical Wave Tanks

, 2023
The objective of the Master’s thesis is to compare different NWT in terms of efficiency and accuracy.Comparisons will be achieved on a set of experimental tests already conducted in ECN. Different types of wave fields will be studied, with an increasing degree of complexity: from regular waves to unidirectional irregular waves.
openaire   +1 more source

Performance Assessment of the Overset Grid Method for Numerical Wave Tank Experiments in the OpenFOAM Environment

Volume 10: Ocean Renewable Energy, 2018
To maximise the energy output of wave energy converters (WECs), large structural motions are desired. When simulating WEC performance in Computational Fluid Dynamics (CFD) based numerical wave tanks, these motions must be explicitly accommodated in the ...
C. Windt, J. Davidson, Benazzou Akram, J. Ringwood   +3 more
semanticscholar   +1 more source

Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications

Advanced Science, EarlyView.
This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang, Hanxu Chen, Yile Fang, Yuanjin Zhao   +3 more
wiley   +1 more source

A high-efficiency dual-impact horizontal rotor wave energy converter: Design, analysis, and experimental tests

Applied Ocean Research
To tackle the challenge of low power generation efficiency of wave energy converters in short-period, low-wave-height sea conditions, this study innovatively proposes a dual-impact horizontal rotor wave energy converter (DHRWEC) system.
Zhongliang Meng, Yi Ding, Yanjun Liu, Wahyu Rahmaniar, Zijian Li, Ammar Ahmed   +5 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source